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Finding the Fourth Proportional to 895.11, 1,234.32 and 708.30

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Solution

The fourth proportional to 895.11, 1,234.32 and 708.30 is: 976.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.11 : 1,234.32 = 708.30 : x
  2. Step 2: Convert to fraction form
    895.11/1,234.32 = 708.30/x
  3. Step 3: Cross multiply
    895.11x = 1,234.32 × 708.30
  4. Step 4: Simplify right side
    895.11x = 874,268.86
  5. Step 5: Solve for x
    x = 874,268.86/895.11
  6. Step 6: Final answer
    x = 976.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.